Industrial waste gas purification treatment system

Abstract

The invention relates to the technical field of waste gas purification, and particularly discloses an industrial waste gas purification treatment system which comprises a spraying tower, a recycling box is arranged on one side of the spraying tower, a filter cylinder is fixedly installed at the bottom of the spraying tower, an input pipe is installed in the center of the interior of the spraying tower in a penetrating mode, and the lower end of the input pipe is located in the filter cylinder. And an auger positioned in the filter drum is mounted at the lower end of the input pipe. Through cooperative work of a plurality of assemblies, pollutants in waste gas are effectively removed. Firstly, dust and particulate matters are removed by a filter drum in the spray tower through water washing, and the design of an auger ensures that waste gas is in full contact with a water medium; the combination of the booster pump and the induced draft fan enables waste gas to flow into the spray tower through the two gas inlet branch pipes, a chemical solution is sprayed through the annular medium pipe to further purify the gas, the inner wall of the spray tower is kept clean through the scraping and washing device, the recycling box is used for collecting and treating polluted water, repeated utilization of water resources is ensured, and therefore the environmental protection benefit of the system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas purification, and in particular to an industrial waste gas purification and treatment system. Background Art

[0002] Industrial waste gas refers to the gas emitted during the industrial production process. These gases are usually produced by chemical reactions and physical processes. The composition is diverse and varies from industry to industry and production process. Common components include volatile organic compounds (VOCs), which mainly come from coatings, solvents and paints, which are harmful to air quality and human health. Industrial waste gas spray cleaning is an effective gas treatment technology that mainly uses liquid as a separation agent to separate dispersed particles and pollutants in gas, air or steam by spraying. The process usually involves passing the gas through a liquid medium. The liquid comes into contact with the gas during the spraying process, thereby achieving the capture and removal of solid particles, droplets and gaseous pollutants in the gas.

[0003] However, the traditional waste gas treatment system relies on a single physical or chemical treatment method, which cannot effectively remove various types of pollutants and fails to achieve wastewater recycling and reuse, resulting in waste of water resources and increased treatment costs. When the system treats gas, it lacks sufficient contact time and reaction conditions, resulting in low pollutant removal rate and difficulty in meeting environmental protection standards. Therefore, the present invention proposes an industrial waste gas purification treatment system to solve the problems mentioned in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an industrial waste gas purification and treatment system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An industrial waste gas purification treatment system comprises a spray tower, a recovery box is arranged on one side of the spray tower, a filter cartridge is fixedly installed at the bottom of the spray tower, an input pipe is installed through the center of the interior of the spray tower, the lower end of the input pipe is located inside the filter cartridge, and an auger located inside the filter cartridge is installed at the lower end of the input pipe, the filter cartridge is responsible for removing solid particles passing through the spray tower, the tower body is made of corrosion-resistant materials to ensure long-term stable operation and reduce maintenance costs, the recovery box is designed as a layered structure, which can facilitate the separation and collection of materials with different densities, and a water outlet is arranged at the bottom to facilitate subsequent treatment;

[0007] A medium pipe is installed inside the spray tower, and the medium pipe is arranged in a ring frame shape and bent and coiled inside the spray tower. A plurality of high-pressure nozzles are installed on the medium pipe, and a plurality of upper and lower partitions are installed inside the spray tower, and the partitions are evenly spaced and distributed inside the medium pipe;

[0008] Intake branch pipes are fixedly installed on the left and right sides of the outer side of the spray tower, and a confluence ring pipe is installed between the upper and lower ends of the intake branch pipes. The upper end of one intake branch pipe is connected to a booster pump, and the booster pump is connected to the upper end of an input pipe, and the lower end of the other intake branch pipe is connected to an induced draft fan. A return pipe installed in the spray tower is arranged above the filter cartridge, and a recovery pipe is connected between the lower part of the return pipe and a recovery box. The intake branch pipes fixedly installed on the left and right sides of the outer side of the spray tower are reasonably designed to ensure that the exhaust gas enters the spray tower smoothly. The setting of the confluence ring pipe between the upper and lower ends of the intake branch pipe can adjust the airflow distribution.

[0009] Preferably, the induced draft fan inlet is connected to the exhaust gas duct through an induced draft channel, and a plurality of annular cylinder shells are installed on the two air intake branches, and wind wheels are installed inside the annular cylinder shells.

[0010] Preferably, a cutting edge corresponding to the medium pipe is opened on one side of the partition, and the cutting edges of the upper and lower partitions are arranged alternately on both sides. The partitions inside the spray tower are evenly distributed and have the function of optimizing the airflow path. The cutting edge design opened on the partition enables the airflow to flow effectively between different areas, enhances the gas-liquid contact efficiency, and avoids the generation of dead zones. A swivel is rotatably connected to the lower side of the partition, and a scraper is fixed to the lower side of the swivel. The connection design between the lower side of the partition and the swivel can automatically clean the accumulated dirt when the spray tower is running. The function of the scraper is to clean the sediment inside the filter cartridge in time.

[0011] Preferably, the annular shell is connected to the interior of the air inlet branch pipe, a spur gear located inside the spray tower is fixed to the inner end of the wind wheel, and a tooth groove corresponding to the spur gear is opened on the upper side of the rotating ring.

[0012] Preferably, the outer side of the auger is close to the inner wall of the filter cartridge, a conical cover fixed in the spray tower is arranged on the upper side of the filter cartridge, and a recovery channel is arranged on the lower side of the spray tower.

[0013] Preferably, the medium pipe inlet and outlet are both connected to the medium container, the medium pipe inlet pumps the medium in the medium container through the pump body, the medium pipe outlet is located above the medium container, and a filling port is provided on the upper side of the medium container. The medium container to which the medium pipe inlet and outlet are connected ensures the supply and reuse of the treatment liquid, and the filling port design of the medium container facilitates the replacement and replenishment of the medium.

[0014] Preferably, a switch valve is installed at the water outlet at the lower end of the filter cartridge, the outer end of the recovery pipe is connected to water pump 2, and the upper end of water pump 2 is connected to a perfusion pipe, and the water outlet of the perfusion pipe is located at the upper end of the recovery box.

[0015] Preferably, the outer end of the return pipe is connected to a water pump 1, and the water pump 1 is connected to the lower part of the recovery tank. The return pipe design above the filter cartridge allows the treated liquid to return to the spray tower in time to form a closed loop.

[0016] Preferably, a filter is installed at the inlet of the recycling box, the filter is in an inclined state, and a chip discharge port corresponding to the lower side of the filter is installed at the inlet of the recycling box. The filter installed at the inlet of the recycling box can not only filter impurities, but also effectively extend the service life of the system. The inclined design facilitates the discharge of dirt, and combined with the chip discharge port, ensures the cleanliness of the box body.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The design of the spray tower of the present invention uses water as the main medium. The water in the filter cartridge is used to preliminarily purify the exhaust gas to remove most of the dust and particulate matter. At the same time, the chemical solution in the medium pipe further reacts to enhance the removal effect of pollutants. The recycling box and return pipe are designed to realize the recycling of water. The treated water can be injected into the filter cartridge again, which reduces resource waste and improves the economy and environmental protection of the system.

[0019] 2. The tortuous path of the waste gas through the spray tower of the present invention (through the configuration of the partition and the pipeline) ensures sufficient contact and reaction of the gas during the entire purification process. After multiple bends, the waste gas can obtain a longer residence time inside the spray tower, thereby improving the purification efficiency;

[0020] 3. The annular cylinder shell and wind wheel structure provided in the present invention, combined with the working principle of the induced draft fan, drive the movement of the spur gear and the rotating ring through the rotation of the wind wheel, and then rotate the scraper. This mechanism effectively cleans the residual chemical solution on the inner wall of the spray tower, keeps the inner wall clean, and thus avoids the influence of dirt on the spraying effect.

[0021] In summary, this industrial waste gas purification system achieves excellent waste gas purification effects through multiple treatment methods, effective path design and efficient resource utilization. The combined use of water and chemical solutions, coupled with efficient cleaning and circulation mechanisms, ensures the continuous operation and high efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of an industrial waste gas purification system proposed by the present invention Figure 1 ;

[0023] Figure 2 A schematic diagram of the structure of an industrial waste gas purification system proposed by the present invention Figure 2 ;

[0024] Figure 3 This is a cross-sectional structural schematic diagram of an industrial waste gas purification and treatment system proposed by the present invention;

[0025] Figure 4 A side cross-sectional view of an industrial waste gas purification system proposed by the present invention Figure 1 ;

[0026] Figure 5 A side cross-sectional view of an industrial waste gas purification system proposed by the present invention Figure 2 ;

[0027] Figure 6 This is a structural schematic diagram of a medium pipe in an industrial waste gas purification treatment system proposed by the present invention;

[0028] Figure 7 A schematic diagram of the connection structure of a partition in an industrial waste gas purification system proposed by the present invention;

[0029] Figure 8 This is a schematic diagram of the side sectional structure of a recovery box in an industrial waste gas purification and treatment system proposed by the present invention.

[0030] In the figure: 1. spray tower; 2. recovery box; 3. air inlet branch pipe; 4. confluence ring pipe; 5. ring tube shell; 6. induced draft fan; 7. booster pump; 8. injection pipe; 9. recovery pipe; 10. return pipe; 11. partition; 12. swivel; 13. scraper; 14. medium pipe; 15. high-pressure nozzle; 16. wind wheel; 17. spur gear; 18. input pipe; 19. filter cartridge; 20. auger; 21. water pump one; 22. water pump two; 23. cone cover; 24. recovery channel; 25. filter screen. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] Reference Figure 1-8 , an industrial waste gas purification and treatment system, comprising a spray tower 1, a recovery box 2 is arranged on one side of the spray tower 1, a filter cartridge 19 is fixedly installed at the bottom of the spray tower 1, an input pipe 18 is installed through the center of the spray tower 1, the lower end of the input pipe 18 is located inside the filter cartridge 19, and an auger 20 located inside the filter cartridge 19 is installed at the lower end of the input pipe 18, and the waste gas is poured into the filter cartridge 19 at the bottom of the spray tower 1 through the input pipe 18, and the filter cartridge 19 is filled with water, and the water is mainly used to remove most of the dust particles and other pollutants in the waste gas. The outer side of the auger 20 is close to the inner wall of the filter cartridge 19, and the setting of the auger 20 can prevent the waste gas from directly rushing out of the filter cartridge 19, and it needs to be discharged to the outside of the spray tower 1 along the annular channel formed by the auger 20 and the filter cartridge 19, so as to ensure that the waste gas is fully infiltrated by the medium water to ensure the removal effect of solid pollutants;

[0033] Furthermore, referring to Figure 1-3, air intake branch pipes 3 are fixedly installed on the left and right sides of the outside of the spray tower 1, and a converging ring pipe 4 is installed between the upper and lower ends of the air intake branch pipes 3. A booster pump 7 is connected to the upper end of one air intake branch pipe 3, and the booster pump 7 is connected to the upper end of the input pipe 18, and an induced draft fan 6 is connected to the lower end of the other air intake branch pipe 3. The inlet of the induced draft fan 6 is connected to the exhaust gas pipeline through the induced draft channel. The exhaust gas is guided into the air intake branch pipe 3 on one side through the induced draft fan 6, and enters the air intake branch pipe 3 on the other side through the lower converging ring pipe 4, and then converged by the upper converging ring pipe 4, and pressurized by the booster pump 7, and then injected into the filter cartridge 19 inside the spray tower 1 through the input pipe 18 at high pressure;

[0034] Furthermore, referring to Figure 3-6 A medium pipe 14 is installed inside the spray tower 1. The medium pipe 14 is bent and coiled in a ring frame shape and arranged inside the spray tower 1. A number of high-pressure nozzles 15 are installed on the medium pipe 14. The inlet and outlet of the medium pipe 14 are both connected to the medium container. The inlet of the medium pipe 14 pumps the medium in the medium container through the pump body. The outlet of the medium pipe 14 is located above the medium container, and a filling port is provided on the upper side of the medium container. A specific chemical solution that reacts with pollutants in the exhaust gas is passed into the medium pipe 14. The medium pipe 14 is connected to the medium container to maintain a permanent connection loop, as well as stable high pressure at various parts inside the medium pipe 14, and is sprayed through the high-pressure nozzle 15 to spray the passing exhaust gas;

[0035] Furthermore, referring to Figure 3 , 5 , and a plurality of upper and lower partitions 11 are installed inside the spray tower 1. The partitions 11 are evenly spaced inside the medium pipe 14. A cut edge corresponding to the medium pipe 14 is opened on one side of the partition 11. The cut edges of the upper and lower partitions 11 are arranged alternately on both sides. One side of the cut edge of the partition 11 forms a channel opening with the spray tower 1. The setting of the partition 11 ensures a tortuous path for the exhaust gas from the bottom of the spray tower 1 to the upper outlet, ensuring that the exhaust gas is continuously and thoroughly reacted and sprayed. The surface of the partition 11 is inclined, which can ensure that the sprayed chemical solution flows downstream. A conical cover 23 fixed in the spray tower 1 is provided on the upper side of the filter cartridge 19, and a recovery channel 24 is provided on the lower side of the spray tower 1. The setting of the conical cover 23 can prevent the medium solution flowing down from the water from falling into the filter cartridge 19 below, and make it fall into the corresponding recovery channel 24 below, and then be uniformly recovered and processed;

[0036] Furthermore, referring to Figure 4 , 7, a plurality of annular shells 5 are installed on the two air inlet branches 3, and a wind wheel 16 is installed inside the annular shell 5. A swivel 12 is rotatably connected to the lower side of the partition 11, and a scraper 13 is fixed to the lower side of the swivel 12. The annular shell 5 is connected to the inside of the air inlet branch 3, and a spur gear 17 located inside the spray tower 1 is fixed at the inner end of the wind wheel 16, and a tooth groove corresponding to the spur gear 17 is opened on the upper side of the swivel 12. When the exhaust gas introduced into the spray tower 1 by the above-mentioned induced draft fan 6, the exhaust gas passes through the annular shell 5 of the air inlet branch 3 and drives the wind wheel 16 in the annular shell 5 to rotate. The wind wheel 16 drives the spur gear 17 fixed at the inner end to rotate, and the spur gear 17 drives the corresponding swivel 12. The scraper 13 fixed on the lower side of the swivel 12 rotates to scrape and wash the solution residue adhered to the inner wall of the spray tower 1 by spraying, so as to keep the inside of the spray tower 1 clean for a long time;

[0037] Furthermore, referring to Figure 2 , 5 8. A return pipe 10 installed in the spray tower 1 is arranged above the filter cartridge 19, and a recovery pipe 9 is connected between the lower part of the return pipe 10 and the recovery box 2. A switch valve is installed at the water outlet at the lower end of the filter cartridge 19. The outer end of the recovery pipe 9 is connected with a water pump 22, and the upper end of the water pump 22 is connected with a perfusion pipe 8. The water outlet of the perfusion pipe 8 is located at the upper end of the recovery box 2. The outer end of the return pipe 10 is connected with a water pump 21, and the water pump 21 is connected with the lower part of the recovery box 2. A filter screen 25 is installed at the inlet of the recovery box 2. The filter screen 25 is in an inclined state, and a chip removal device corresponding to the lower side of the filter screen 25 is installed at the inlet of the recovery box 2. After the device has been processing for a period of time, the aqueous solution inside the filter cartridge 19 absorbs more particulate impurities and needs to be replaced. The water in the filter cartridge 19 can be pumped out through the water pump 22 and the recovery pipe 9, and enter the upper port of the recovery box 2 through the perfusion pipe 8. The filter screen 25 arranged at the inlet of the recovery box 2 can filter the particles of the recovered aqueous solution, and the particulate impurities are discharged through the chip discharge port on one side. The filtered aqueous solution enters the recovery box 2, and then the treated water is introduced into the filter cartridge 19 in the spray tower 1 again through the water pump 21 and the return pipe 10 for repeated use.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An industrial waste gas purification system, comprising a spray tower (1), characterized in that: A recovery box (2) is provided on one side of the spray tower (1), a filter cartridge (19) is fixedly installed at the bottom of the spray tower (1), an input pipe (18) is installed through the center of the interior of the spray tower (1), the lower end of the input pipe (18) is located inside the filter cartridge (19), and an auger (20) located inside the filter cartridge (19) is installed at the lower end of the input pipe (18); A medium pipe (14) is installed inside the spray tower (1), the medium pipe (14) is arranged in a ring frame shape in a bent and coiled manner inside the spray tower (1), a plurality of high-pressure nozzles (15) are installed on the medium pipe (14), and a plurality of upper and lower partitions (11) are installed inside the spray tower (1), the partitions (11) are evenly spaced and distributed inside the medium pipe (14); An air intake branch pipe (3) is fixedly installed on the left and right sides of the outer side of the spray tower (1), and a converging ring pipe (4) is installed between the upper and lower ends of the air intake branch pipe (3). The upper end of one of the air intake branch pipes (3) is connected to a booster pump (7), and the booster pump (7) is connected to the upper end of the input pipe (18). The lower end of the other air intake branch pipe (3) is connected to an induced draft fan (6). A return pipe (10) installed in the spray tower (1) is arranged above the filter cartridge (19), and a recovery pipe (9) is connected between the lower part of the return pipe (10) and the recovery box (2).

2. The industrial waste gas purification system according to claim 1, characterized in that: The inlet of the induced draft fan (6) is connected to the exhaust gas pipeline through an induced draft channel. A plurality of annular shells (5) are installed on the two air inlet branches (3), and a wind wheel (16) is installed inside the annular shells (5).

3. The industrial waste gas purification system according to claim 1, characterized in that: A cutting edge corresponding to the medium pipe (14) is provided on one side of the partition (11), the cutting edges of the upper and lower partitions (11) are arranged alternately on both sides, and a rotating ring (12) is rotatably connected to the lower side of the partition (11), and a scraper strip (13) is fixed to the lower side of the rotating ring (12).

4. The industrial waste gas purification system according to claim 2 or 3, characterized in that: The annular shell (5) is connected to the inside of the air intake branch pipe (3), a spur gear (17) located inside the spray tower (1) is fixed to the inner end of the wind wheel (16), and a tooth groove corresponding to the spur gear (17) is formed on the upper side of the rotating ring (12).

5. The industrial waste gas purification system according to claim 1, characterized in that: The outer side of the auger (20) is close to the inner wall of the filter cartridge (19), the upper side of the filter cartridge (19) is provided with a conical cover (23) fixed in the spray tower (1), and the lower side of the spray tower (1) is provided with a recovery channel (24).

6. The industrial waste gas purification system according to claim 1, characterized in that: The inlet and outlet of the medium pipe (14) are both connected to the medium container. The inlet of the medium pipe (14) pumps the medium in the medium container through the pump body. The outlet of the medium pipe (14) is located above the medium container, and a filling port is further provided on the upper side of the medium container.

7. The industrial waste gas purification system according to claim 1, characterized in that: The water outlet at the lower end of the filter cartridge (19) is equipped with a switch valve, the outer end of the recovery pipe (9) is connected to a second water pump (22), and the upper end of the second water pump (22) is connected to an injection pipe (8), and the water outlet of the injection pipe (8) is located at the upper end of the recovery box (2).

8. The industrial waste gas purification system according to claim 1, characterized in that: The outer end of the return pipe (10) is connected to a water pump (21), and the water pump (21) is connected to the lower part of the recovery box (2).

9. The industrial waste gas purification system according to claim 1, characterized in that: A filter screen (25) is installed at the inlet of the recovery box (2), the filter screen (25) is in an inclined state, and a chip discharge port corresponding to the lower side of the filter screen (25) is installed at the inlet of the recovery box (2).

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